Hi! > > > This code will prefetch from beyond the end of the page table > > > being cleared ... which is clearly a bad thing if the page table > > > in question is allocated from the last page of memory (or precedes > > > a hole on a discontig mem system). > > Prefetching random addresses should be safe... > > It isn't on some CPUs. Early athlons go bang when you prefetch > past the end of RAM into unmapped memory for eg. Well, broken HW :-(, but andi's patch should fix up for that. Pavel -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlReceived on Mon Oct 27 04:58:39 2003
This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:19 EST